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Finding the Fourth Proportional to 35,894.79, 49,534.29 and 19,979.22

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Solution

The fourth proportional to 35,894.79, 49,534.29 and 19,979.22 is: 27,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,894.79 : 49,534.29 = 19,979.22 : x
  2. Step 2: Convert to fraction form
    35,894.79/49,534.29 = 19,979.22/x
  3. Step 3: Cross multiply
    35,894.79x = 49,534.29 × 19,979.22
  4. Step 4: Simplify right side
    35,894.79x = 989,656,477.45
  5. Step 5: Solve for x
    x = 989,656,477.45/35,894.79
  6. Step 6: Final answer
    x = 27,571.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.